unfasten
131zip — zip1 /zip/, n., v., zipped, zipping. n. 1. a sudden, brief hissing sound, as of a bullet. 2. Informal. energy; vim; vigor. v.i. 3. to move with a zipping sound. 4. Informal. to act or move with speed or energy: I ll just zip upstairs. v.t.… …
132unbutton — verb a) To unfasten buttons b) To open something by undoing its buttons …
